Well, all the special effects look like fun.
Truth be told, I have a perverse desire to chop off limbs, so I'll be favoring swordsmanship.
I also have a tendency to play with matches - so I might be burning things on occasion.
Someone told me, throwing stuff that goes boom can be fun too.
Yet, if I had to focus - (1) Sword play (2) Magic (3) a few key bombs/salves etc for buffing.
Yeah, we pretty well need them all. At higher difficulty levels, I might guess that alchemy plays a large role.